A steam generating device for preventing fouling

Abstract

The present invention discloses an anti-fouling steam generating device, comprising a base, a heating element assembly and a steam cavity arranged in sequence from bottom to top, a water inlet and a steam outlet are provided on the steam cavity, a sealing gasket is provided between the heating element assembly and the steam cavity, a lower flow channel vertically penetrating the sealing gasket is provided on the sealing gasket, an upper flow channel is provided in the steam cavity, the upper flow channel and the lower flow channel are docked and combined into a complete steam flow channel, and the steam flow channel is respectively connected with the water inlet and the steam outlet; the heating element assembly comprises an aluminum plate, and a heating body arranged in the aluminum plate; the steam cavity is a plastic steam cavity. The present invention optimizes the structure and material of the existing steam generating device, plays a role in effectively reducing the accumulation of scale, and can greatly reduce the formation of oxide scale, and can eliminate the blockage of the steam flow channel.

Description

Technical Field

[0001] The invention relates to the field of steam generation, in particular to an anti-scaling steam generating device applied to the field of household appliances such as steam foot basins and ironing machines. Background Art

[0002] A steam generator (commonly known as a boiler) is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam.

[0003] Garment steamers and steam foot basins are relatively common devices with steam generating functions, which generally include a water storage chamber, a heating chamber with a steam outlet, a guide channel connecting the water storage chamber and the heating chamber, and a heating element arranged in the heating chamber.

[0004] The structure of the existing steam generating device includes a base, a heating element assembly and an aluminum steam cavity arranged in sequence from bottom to top, and a steam flow channel is directly formed on the heating element. Due to different water quality, after the product has been used for a period of time, the inner wall of the aluminum steam cavity oxidizes with water to produce a large amount of oxidized dirt. These oxidized scales attached to the steam cavity are less likely to fall off than those on the bottom surface of the steam flow channel. Over time, the dirt will accumulate in large quantities along with the scale and cannot be removed; the accumulated scale can make the steam smaller until it completely blocks the steam outlet, and can cause the temperature value detected by the thermostat to be low, so that the steam generator continues to work while the internal temperature continues to rise, resulting in accelerated aging of the corresponding components and the steam cavity being more susceptible to heat deformation. Summary of the invention

[0005] In order to overcome the above-mentioned existing deficiencies, the present invention provides an anti-fouling steam generating device which can significantly reduce the formation of scale, prevent internal blockage caused by scale, and ensure accurate temperature control of the thermostat.

[0006] The technical solution of the present invention to solve the technical problem is: an anti-fouling steam generating device, comprising a base, a heating element assembly and a steam cavity arranged in sequence from bottom to top, a water inlet and a steam outlet are provided on the steam cavity, a sealing gasket is provided between the heating element assembly and the steam cavity, a lower flow channel vertically penetrating the sealing gasket is provided on the sealing gasket, an upper flow channel is provided in the steam cavity, the upper flow channel and the lower flow channel are connected and combined into a complete steam flow channel, and the steam flow channel is respectively connected with the water inlet and the steam outlet;

[0007] The heating element assembly comprises an aluminum plate and a heating body arranged in the aluminum plate;

[0008] The steam cavity is a plastic steam cavity.

[0009] Preferably, a positioning groove is provided at the upper end of the flow channel wall of the lower flow channel, and the flow channel wall of the upper flow channel is inserted into the positioning groove.

[0010] Preferably, a plurality of baffles of different heights are protruding from the steam flow channel, and a steam and water passing gap is formed between the baffles and the inner top of the steam cavity, and the height of the baffles gradually increases from the water inlet to the steam outlet.

[0011] Preferably, the baffle is arranged near the bend of the steam flow channel.

[0012] Preferably, the height of the steam outlet is higher than the height of the water inlet.

[0013] Preferably, the steam cavity is provided with a raised portion, the steam outlet is arranged on the raised portion, and the lower end of the raised portion is communicated with the end of the steam flow channel.

[0014] Preferably, the steam generating device also includes a water tank assembly and a water inlet pipe, the water tank assembly is provided with a water outlet, the rear end of the water inlet pipe is connected to the water outlet, the front end of the water inlet pipe is connected to the water inlet, and the height of the front end of the water inlet pipe is higher than the height of the rear end of the water inlet pipe.

[0015] Preferably, the water tank assembly comprises a water tank base fixed to the base, and a water tank body inserted upside down on the water tank base, and the height of the lowermost end of the water tank body is higher than or equal to the height of the water inlet.

[0016] Preferably, the water tank body and the water tank base form a detachable connection.

[0017] The beneficial effects of the present invention are: 1. The structure and material of the existing steam generating device are optimized, which effectively reduces the accumulation of scale, and at the same time can greatly reduce the formation of oxide scale, and can eliminate the blockage of the steam flow channel; structurally, a sealing gasket is added between the heating element assembly and the steam cavity, and the heating body is embedded in an aluminum plate; in terms of material, the steam cavity adopts a plastic steam cavity instead of the existing aluminum steam cavity, and the aluminum plate contacts the water instead of the existing heating element.

[0018] 2. The steam flow channel is formed by splicing the lower channel on the sealing gasket and the upper channel on the steam cavity, which replaces the existing method of directly forming the steam flow channel on the heating element, further reducing the amount of dirt generated. At the same time, the accumulated dirt is not easy to adhere to the sealing gasket and the plastic steam cavity, so that it can be washed out by steam.

[0019] 3. By setting the baffle in the steam flow channel, a barrier is formed to intercept the scale and reduce the amount of scale at the end of the steam flow channel, thereby improving safety during use.

[0020] 4. The height of the baffle gradually increases from the water inlet to the steam outlet to adapt to the changes in the amount of liquid water and steam, so that the liquid water can be fully heated and evaporated, allowing the steam to pass through and spray out smoothly, while effectively preventing the liquid water from passing through and causing the high-temperature liquid water to splash out.

[0021] 5. The water inlet structure has been optimized, and the U-tube effect is used to achieve automatic water inlet. There is no need to use accessories such as electromagnetic pumps, so that the water in the water tank body can smoothly enter the steam flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is an exploded view of the present invention.

[0024] Figure 3 It is a transverse cross-sectional view of the present invention.

[0025] Figure 4 It is another high-level transverse cross-sectional view of the present invention.

[0026] Figure 5 It is a transversely cut axial schematic diagram of the present invention.

[0027] Figure 6 It is a longitudinal sectional view of the present invention.

[0028] Figure 7 It is a schematic diagram of the structure of the steam chamber.

[0029] Figure 8 It is a schematic diagram of the structure of the sealing gasket. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 8 , an anti-fouling steam generating device, comprising a base 1, a heating element assembly and a steam cavity 2 arranged in sequence from bottom to top, the steam cavity 2 is provided with a water inlet 3 and a steam outlet 4, a sealing gasket 5 is provided between the heating element assembly and the steam cavity 2, the sealing gasket 5 is provided with a lower flow channel 6 vertically penetrating the sealing gasket 5, an upper flow channel 7 is provided in the steam cavity 2, the upper flow channel 7 and the lower flow channel 6 are connected to form a complete steam flow channel 8, and the steam flow channel 8 is communicated with the water inlet 3 and the steam outlet 4 respectively;

[0032] The heating element assembly comprises an aluminum plate 9 and a heating body 10 disposed in the aluminum plate 9;

[0033] The steam cavity 2 is a plastic steam cavity 2 .

[0034] The specific matching structure of the upper flow channel 7 and the lower flow channel 6 is as follows: a positioning groove 11 is provided at the upper end of the flow channel wall of the lower flow channel 6, and the flow channel wall of the upper flow channel 7 is inserted into the positioning groove 11. The setting of the positioning groove 11 makes the upper flow channel 7 and the lower flow channel 6 relatively simple and convenient to install. After docking, the groove wall of the positioning groove 11 can form a certain limiting effect on the flow channel wall of the upper flow channel 7 to maintain the stability of their relative positions. Preferably, an interference fit is adopted between the positioning groove 11 and the flow channel wall of the upper flow channel 7. Since the sealing gasket 5 is made of soft material, the relatively hard flow channel wall can still be easily inserted into the positioning groove 11.

[0035] The conventional steam flow channel 8 is unobstructed from the water inlet 3 to the steam outlet 4, so most of the scale generated during use will be washed to the vicinity of the steam outlet 4. This method will have a great safety hazard after long-term use. First, it is easy to get blocked, and second, the steam may be sprayed with some scale, and the spraying mechanism may cause injuries to people and objects. In order to solve the above defects, in the structure of the present invention, a plurality of baffles 12 of different heights are convexly provided in the steam flow channel 8, and a steam and water gap 18 is formed between the baffle 12 and the inner top of the steam cavity 2. The existence of the baffle 12, that is, forms a barrier, which can intercept the scale and reduce the amount of scale at the end of the steam flow channel 8, so that the safety during use is better. On the other hand, it conforms to the changes in the amount of liquid water and steam, that is, the liquid water is significantly more than the steam near the water inlet 3, and the steam is significantly more than the liquid water near the steam outlet 4. In order to allow the liquid water to be fully heated and evaporated, the baffle 12 at the initial stage of the steam flow channel 8 should not be set too high, and the liquid water should be able to pass through; and the baffle 12 at the final stage of the steam flow channel 8 should not be set too low, so as to allow the steam to pass through and prevent the liquid water from passing through and causing the high-temperature liquid water to splash out. In short, the specific setting method of the baffle 12 is: the height of the baffle 12 gradually increases from the water inlet 3 to the steam outlet 4,

[0036] As is known to all, at the bend of the steam flow channel 8, the flow rate of steam and liquid water is relatively slow due to the inner wall being touched and changing direction, and deposition is more likely to occur. In this embodiment, the baffle 12 is arranged near the bend of the steam flow channel 8, which can further intercept the scale in various areas of the steam flow channel 8, so as to reduce the amount of scale at the end of the steam flow channel 8.

[0037] Preferably, the height of the steam outlet 4 is higher than the height of the water inlet 3. This arrangement can prevent the high-temperature liquid water in the steam flow channel 8 from flowing too fast and directly spraying out from the steam outlet 4, and allows the liquid water to be fully heated and evaporated into a steam state. Furthermore, the steam cavity 2 is provided with a raised portion 13, the steam outlet 4 is provided on the raised portion 13, and the lower end of the raised portion 13 is connected to the end of the steam flow channel 8.

[0038] In the present invention, the steam generating device further comprises a water tank assembly and a water inlet pipe 14, wherein the water tank assembly is provided with a water outlet 15, the rear end of the water inlet pipe 14 is docked with the water outlet 15, the front end of the water inlet pipe 14 is docked with the water inlet 3, and the height of the front end of the water inlet pipe 14 is higher than the height of the rear end of the water inlet pipe 14. Preferably, the side view of the water inlet pipe 14 is similar to a Z-shape, so that the water tank body 17, the water inlet pipe 14 and the steam cavity 2 are combined to form a U-shaped tube water inlet effect, thereby eliminating the use of accessories such as an electromagnetic pump, that is, the water in the water tank body 17 can smoothly enter the steam flow channel 8.

[0039] Furthermore, the water tank assembly includes a water tank base 16 fixed to the base 1, and a water tank body 17 inserted upside down on the water tank base 16. In order to ensure that the U-tube water inlet effect can play a practical role, the height of the lower end of the water tank body 17 is higher than or equal to the height of the water inlet 3.

[0040] In addition, the water tank body 17 and the water tank base 16 form a detachable connection, which is convenient for adding water during use.

[0041] The present invention provides a steam generating device that is resistant to fouling, and the use method of heating and generating steam is basically the same as that of the existing steam generating device, which will not be described in detail here.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment according to the technical essence of the invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-fouling steam generating device, comprising a base, a heating element assembly and a steam cavity arranged in sequence from bottom to top, wherein the steam cavity is provided with a water inlet and a steam outlet, and characterized in that: A sealing gasket is provided between the heating element assembly and the steam cavity, a lower flow channel vertically penetrating the sealing gasket is provided on the sealing gasket, an upper flow channel is provided in the steam cavity, the upper flow channel and the lower flow channel are connected and combined into a complete steam flow channel, and the steam flow channel is respectively connected with the water inlet and the steam outlet; The heating element assembly comprises an aluminum plate and a heating body arranged in the aluminum plate; The steam cavity is a plastic steam cavity; A plurality of baffles of different heights are protruding from the steam flow channel, and a steam and water gap is formed between the baffles and the inner top of the steam cavity. The height of the baffles gradually increases from the water inlet to the steam outlet.

2. The anti-fouling steam generating device according to claim 1, characterized in that: A positioning groove is provided at the upper end of the flow channel wall of the lower flow channel, and the flow channel wall of the upper flow channel is inserted into the positioning groove.

3. The anti-fouling steam generating device according to claim 1, characterized in that: The baffle is arranged near the bend of the steam flow channel.

4. The anti-fouling steam generating device according to claim 1, characterized in that: The height of the steam outlet is higher than that of the water inlet.

5. The anti-fouling steam generating device according to claim 1, characterized in that: The steam cavity is provided with a convex portion, the steam outlet is arranged on the convex portion, and the lower end of the convex portion is communicated with the end of the steam flow channel.

6. The anti-fouling steam generating device according to claim 1, characterized in that: The steam generating device also includes a water tank assembly and a water inlet pipe. The water tank assembly is provided with a water outlet. The rear end of the water inlet pipe is connected to the water outlet, and the front end of the water inlet pipe is connected to the water inlet. The height of the front end of the water inlet pipe is higher than the height of the rear end of the water inlet pipe.

7. The anti-fouling steam generating device according to claim 6, characterized in that: The water tank assembly comprises a water tank base fixedly connected to the base, and a water tank body invertedly inserted on the water tank base, and the height of the lowermost end of the water tank body is higher than or equal to the height of the water inlet.

8. The anti-fouling steam generating device according to claim 7, characterized in that: The water tank body is detachably connected to the water tank base.

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